Selective and Efficient Recovery of Lithium from Mother Liquor from Lithium Carbonate Precipitation Process

Mother liquor obtained from the process of Li 2 CO 3 precipitation contains abundant lithium resources. In this article, sodium phosphate was used as the precipitation agent to selectively recover lithium from the mother liquor. The effects of sodium phosphate dosage, initial pH of the mother liquor...

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Bibliographic Details
Published in:JOM (1989) 2024-09, Vol.76 (9), p.5399-5407
Main Authors: Lei, Foguang, Xu, Xiaoyang, Wang, Qiankun, Xie, Hongzhen, Gan, Wen
Format: Article
Language:English
Subjects:
Adsorption
Aluminum
Boron
Chemical precipitation
Chemistry/Food Science
Chloride
Dosage
Earth Sciences
Energy consumption
Engineering
Environment
Fluorides
Liquor
Lithium
Lithium carbonate
Physics
Raw materials
Reaction time
Recovery
Recycling
Sodium
Sodium phosphate
Solvent extraction processes
Technical Article
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Summary:Mother liquor obtained from the process of Li 2 CO 3 precipitation contains abundant lithium resources. In this article, sodium phosphate was used as the precipitation agent to selectively recover lithium from the mother liquor. The effects of sodium phosphate dosage, initial pH of the mother liquor, reaction temperature and reaction time on the lithium recovery rate were investigated. The results showed that the lithium recovery rate and final lithium content in the mother liquor reached 93.07% and 98.03 mg/L, respectively, under the optimal conditions, which were determined as follows: sodium phosphate dosage 1, reaction time 120 min and reaction temperature 90°C. The generation process of lithium phosphate is more influenced by kinetics factors than thermodynamics factors. The lithium phosphate obtained from the mother liquor can be returned to the main recycling system or sold as a raw material for producing Li 2 CO 3 and LiOH·H 2 O. The method in this article not only has strong adaptability to the main recycling system of enterprises but also helps to increasing comprehensive lithium recovery rate to improve economic benefit of the enterprises.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-024-06762-5